D+9-2d=6

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Solution for D+9-2d=6 equation:


Simplifying
D + 9 + -2d = 6

Reorder the terms:
9 + D + -2d = 6

Solving
9 + D + -2d = 6

Solving for variable 'D'.

Move all terms containing D to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + D + -9 + -2d = 6 + -9

Reorder the terms:
9 + -9 + D + -2d = 6 + -9

Combine like terms: 9 + -9 = 0
0 + D + -2d = 6 + -9
D + -2d = 6 + -9

Combine like terms: 6 + -9 = -3
D + -2d = -3

Add '2d' to each side of the equation.
D + -2d + 2d = -3 + 2d

Combine like terms: -2d + 2d = 0
D + 0 = -3 + 2d
D = -3 + 2d

Simplifying
D = -3 + 2d

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